Fluid elevating and feeding means



AQZEB L A T E E H N V E L FLUID `EIJEVATING AND FEEDING MEANS Filed June 6, 1922 INVENTORS //z /f//seJ J Bzdw/ mi ATTORNEY.

Patented Apr. 29, 1924.

L UNITED STATES PATENT QFFICE.

misma n vAN Hiss AND JAMES v.vBAL`Dw1N, or Los'ANeELEs, cALIronNu'.

FLUID nLEvA'rINe AND FEEDING Mums.

application ma :une s, 1922. serieu No. 566,374.

To all wlwm zt may concern:

Be it known that we, LESTER E. VAN Hiss and JAMES V. BALDWIN, citizens of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have jointly invented new and useful Improvements in Fluid Elevating and Feeding Means, of which the following is a specification.

This invention relates to fluid elevating and feeding means, and has for its object the revision of a device of this character whic is adaptable for ,pumping from a source of supply anyform of fluid desired. Other objects of the invention will appear as the description proceeds. This4 invention is an improvement on our co-pending application for fluid elevating and feeding means filed April 10, 1922, Serial No. 551,244, and application for Huid elevating and feeding means filed Sept. 3, 1921', in the United States Patent Office, Serial No. 498,434.

In the drawing: v

Figure 1 is a fragmentary view, certain parts being in section, vof our improved fluid and elevating means considered in its entirety, in combination with a source of liquid supply and the member'to which said Huid is pumped.

Figure 2 is a fragmentary View of a modiication of the pump mem r; and

Figure 3 1s a cross see ional View of a' valve element used in practicing the invention, the said 'view ,being taken on the line 3-3 of Figure 1. v

Corresponding parts in all the figures are l designated by the same reference characters,

Referring to the drawing the adaptation of the means may be applied wherever it is desired to boost fluid or cause the flow of a fluid from a given point to a given point and where it is necessary to use a pumping element to cause said ow. In particular the fluid elevating and feeding means may be designated as an entirety by A in Figure 1, and of which a is one fo-rm of pump used in said system and b a second form of pump which might be substituted for the pump a, the chief difference between the said pumps residing in the method of heating the same, the said pump a is of relatively diminutive character and has the characteristics of a bottle, being open4 at one end and closed at the other, and therefore may be convenientl characterized las a bottle-like pump mem r.A In Figure 1 the numeral 1 represents a tank which may contain some liquid such as gasoline, and a feeding pipe 2 leads from said tank to a valve element c'and from said valve element through a suitable pipe 3 to the pump.

as 8 and screw-threaded exteriorly as at 9 adjacent its open mouth. A ymember-y 10"is internally threaded as. atvll for reception 0n the threaded part 9 of the casing 7, and said `member! 10 is p-rovided with two annular members 12 and 13 adapted to receive and confine ends of the pipes 3 and 4. The top 14.- of the member 10 is provided With an opening through which projects a screw 15, and said screw normally supports an element d within the casing 7. The element d may comprise a tubular member 16 closed at one end by means of a plug 17, said plug being annular in formation and screw-threaded on its inner surface for reception of the screw-threaded portion of the screw 15. In the showing the plug 17 is retained in the tubular member 16 by a pin 18 passing through said tubular member and engaging the plug 17.

One .end of said tubular member 16, the

lower end, is open. Aninsulating casin 19 Surrounds the tubular member 16 an coiled about said vinsulating casing is an electrical conductor 20. Each end of the electrical conductor 20 passes through an insulating bushing 21 and 22 inthe casing 7, and the said electrical conductors connect with a source of electrical current supply e, there being a switch element f in the electricalcircuit. If desired, some form of rheostat Amight be provided in the electrical current so as to regulate the current flowing within the coil 20Y surroundln the element d, or taps may be taken as s own at 22a whereby different zones ofthe memvis upon the threads'of the art.2A.-- The ,an nular portion of the b 'yk 23 is enlargedl Aat the part 26 and said'part is screw-thread ed internally for a portion as at 27. vAv

flanged nut 28 is received withinl the body 23 at the screw-threaded portion 27,- and a second cap member 29 carryinor `an end of, the piiges 3 or 4 is screw-threadbd uponthe threa 30 of the nut. The chamber of the body 23 is provided with a series of half bores 31- and a small disc 32 is 4normally confined lwithin said chamber` for closing at times the annular opening 33 in th'e nut 28.

The operation ofthe device is as follows:

. Assuming that the tank is filled with some fluid, such'as gasoline, andy that the apparatus including the pump a is fully primed,

the switch f may be placed in position'so as to close an electrical circuit through the coil 2O fromrthe source of current supply e, and the coil 2O will become heated and in turn communicate its heat tothe interior of the casing 7 and likewise heat the tubular elementd.

' W'hen the apparatus is fully rimed, the heating of the bottle-like pump e ement will rapidly vaporize the fluid therein with the result cf vaporizing the saine and placing the check valve c into the outer shell pressure therein which will expel fluid upwardly past the check valve c, and this vaporization and expulsion of liquid will continue until the pressure above the intake check valve c is less than atmospheric presfor drawin into the pum chamber a fresh suppl of uid from thefintake pipe 2, and that resh supply of fluid is in turn vaporized and expelled in the manner already described. The operation repeats itself so as to give a distinct pulsation or pumping action that will pump the fluid in-a. substantially continuous stream into the container 6 which receives the same.

With reference to the member d it is pointed out that this member is primarily instrumental in effecting the pumping action previouslyl described. That is to sa when the device is properly primed wit liquid fuel the lower open end of d is submerged in the liquid fuel and the s e in the member d above the fuel and beloavv the member 17 constitutes a vapor tra vin which the vapor collects (upon the app ication of heat) and when the va rization of the asoline or other volatile liquid has accum ated suiiiciently in the member d it will expand vof the accompanying drawi and scope of the ap v Havin thus disc osed our invention, we

.and 1plsh out the fuelbetween the outer side of t pointed out that the o ration of the device involves two cycles, rst a discharge cycle and then an intake cycle.v When the Vpume is primed' so that liquid fills the so-call casing 7 to`4 the pro r int, the liquid fuel will enter the mou the member d up to a point where it is held back by the air trapped within the member d. When heat is applied to the pump the soline or other fuel becomes vaporized an the space above the gasoline which seals the open end of d,

-accumulatesvapor under pressure until the pressure becomes strong enough to let go and push the gasoline out between the walls of the member d and the casing 7, as pre viously ex lained. i

When t e pressure in the vapor 'has expended itself and moved its increment of fluid forward, a artial vacuum is formed in the member d w 'ch tends to pull-in fresh fuel through the suppl line. Such fuel being coollintensies l t e vacuum as explained, and greatly assists in the pumping action.

The modification of ai@ device' b shown iii Figure 2 consists in coiling the conductor 20 about the outside of the casing in place of coiling it about the element a. The re- 'sults obtained,'however, are the same. By

fluting or relieving or half-boring, as 1t might be termed, portions of the wall surrounding the annu ar chamber 26, any iiuid flowing through the opening 33 may esca past t e disc 32 by raising said disc. shown by the drawing the disc normally closes the openin 33 and prevents an liquid from passing bac through the mem c or c into the pipes 4 or 3 respectively.

It is obvious that various changes and modifications may be made in departure owing from the particular description and s in adapting the invention to varying con itions and requirements of use and service, without departing from the true spirit of the invention en ed claims.

claim an desire to secure by Letters Patent:

1. A device of the character disclosed, in cluding two concentric tubular members and a wire coil sun'ounding'ene of said members for heating said mem -upon electrifying 'the wire coil, vand means f9.1' qldllcting a lll charge line also communicating with the open end of the pump casing, and an elec- 15 trical heating element associated with said pump element. v 4

In testimony whereof, we havesigned our names to this specification in the presence of two subscribing witnesses.

JAMES V. BALDWIN. LESTER E. VAN HISE. Witnesses:

J. SHUTr, J. CALVIN BROWN. 

